Stuff found in canyon (5)
I believe the answer is:
gorge
I believe this clue is a double definition.
'stuff' is the first definition.
('gorge' can be a synonym of 'stuff')
'canyon' is the second definition.
(I've seen this before)
'found in' is the link.
(Other definitions for gorge that I've seen before include "Ravine; glut" , "Eat greedily" , "Devour" , "Eat gluttonously" , "not fast" .)